India, Oct. 29 -- Scientists have discovered fossil evidence of what could be the first known amphibian to have lived entirely in the ocean, challenging long-held assumptions about the evolutionary history of these animals.

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Named Gerrothorax maritimus, the heavily armoured creature lived approximately 237 million years ago during the Late Triassic period, according to The Independent.

The findings, published in Nature Ecology & Evolution, are based on two nearly complete skeletons discovered in China's Guizhou Province.

Measuring approximately 75cm in length, the creature had a flattened, disc-shaped body covered in pr...